A meta-analysis of surgery treatment of chronic pancreatitis with an inflammatory mass in the head of pancreas: duodenum-preserving pancreatic head resection versus pancreatoduodenectomy

To compare the safety and effectiveness of DPPHR with PPPD/PD for treating chronic pancreatitis with an inflammatory mass in the head of pancreas. The relative data bases such as Medline, EMBase, Biosis, COCHRANE Library, Science Citation Index, SinoMed, Chinese Journal Full-text Database, Wangfang, CNKI were searched systematically, researchers selected randomized controlled trials (RCT) and prospective clinical controlled trials (CCT) . The assessment of the bias risk of the included trials was according to the assessing tools suggested by Cochrane Handbook 5.1. The Review Manage 5.2 was used to perform the statistical analysis. In total, 5 RCTs and 2 CCTs were included, 381 patients involved. Comparing with PPPD/PD procedure, DPPHR has no significant difference in terms of the mortality of perioperative period (RD = 0.01, P = 0.51), the incidence of bleeding (RD = -0.01, P = 0.72), pancreatic fistula(RD = -0.01, P = 0.59) and delayed gastric emptying (RD = -0.15, P = 0.10), the ration of complete pain reli